package com.company;

import java.util.Scanner;

public class Caculater {

    public int sum(int a, int b) {
        return a + b;
    }

    public static void main(String[] args) {
        Caculater caculater = new Caculater();
        Scanner scanner = new Scanner(System.in);
        while (scanner.hasNextLine()) {
            int a = scanner.nextInt();
            int b = scanner.nextInt();
            int sum = caculater.sum(a, b);
            System.out.println(sum);
        }

    }
}